baber/WOPTO huggingface dataset:
Patent GB-997964-A (GB)
Title: Heavily damped eddy current motor driven servo mechanism
IPC: G01F9/00
Filed: 1961-08-25
Abstract: 997,964. Determining liquid level. SIMMONDS PRECISION PRODUCTS Inc. Aug. 25, 1961 [Aug. 25 25, 1960], No. 30806/61. Heading G1N. A servo mechanism includes an eddy current rotor having a disc rotor in which reference and error fields operate and which is connected to the movable element of a capacitor, means being provided for damping the rotor and balancing the movable part of the capacitor element. The invention as described with reference to indicating liquid level is by means of capacitor plates in a tank 10 the eddy current rotor being responsive to antiphase signals between the centre top of transformer 13 and point 14 to adjust capacitor 17 to a null position. The servomotor position is then an indication of liquid level. Fig. 2 shows the servomotor 28 balancing capacitor 25, amplifier 23, bridge components 22 and D.C./A.C. converter (if necessary) 27 all mounted in a halfcylinder 38 and enclosed in a housing 75 closed at one end by a transparent window 78. The servomotor consists of eddy current disc 28 mounted on P.T.F.E. bearings between end bell-shaped members 34, 35 one of which carries E-shaped electromagnet 39 fed with the reference signal and the other the C-shaped electromagnet 40 fed with the error signal. The bells also carry C-shaped permanent magnets 57, 58 to provide rotor damping. The rotor is direct coupled to movable capacitor plates 41, 42 (Fig. 6) moving in appropriately shaped stator plate assembly 25. The supply to the moving plates is through a hair spring 50. Which also return the rotor to its zero position if the supply fails. When this happens a flag 64 is visible through an aperture on the dial of the device. Member 63 carrying the flag also co-operates with pin 65 in two positions of rotation so as to limit the capacitor travel and hence avoid ambiguous indications. Member 63 also provides balancing of the capacitor moving parts 69. The position of the servomotor is indicated by a pointer 59 viewed through the end glass 78 against a dial 60.
Patent GB-721427-A (GB)
Title: Improvements relating to door-handling mechanism for the doors of horizontal coke ovens
IPC: C10B25/14
Filed: 1952-12-04
Abstract: 721,427. Handling coke oven doors. KOPPERS GES., H. Dec. 4, 1952, [Dec. 29, 1951.] No. 30812/52. Class 55 (1). A door handling mechanism for withdrawing and swinging to one side of the door 1 of a horizontal coke oven 2 has a frame 6 incorporating an inclined track 5, a guide device 3 having rollers 4 engaging the track and to which is secured a carrier 7 provided with door-lifting claws 9 being movable along the track towards or away from the oven, the movement being effected by admission of compressed air to one side or the other of a piston in a cylinder 10, the piston rod 11 being connected to the device 3 at 14 by means of link 12, lever 15 and arm 25. To allow the withdrawn door to be swung to one side, the carrier 7 is secured to a rotatable shaft 22 positioned vertically in the device 3 and connected by arm 20, link 19 and lever 18 to the piston rod 17 of a second compressed air cylinder 16. Admission of air to this cylinder causes the door to swing through an arc of about 90 degrees, so that it may be cleaned or repaired. In an alternative arrangement the driving force to swing the carrier is supplied by a semi-rotary pneumatic pressure motor. The mechanism is especially suitable for use in the door handling apparatus described in Specification 687,058.
Patent GB-1536048-A (GB)
Title: Bias circuit for a photo-avalanche diode
IPC: G01S7/4861
Filed: 1976-07-23
Abstract: 1536048 Photo-avalanche diode bias circuit HUGHES AIRCRAFT CO 23 July 1976 [27 Aug 1975] 30832/76 Heading G1A [Also in Division H3]  A bias circuit for photo-avalanche diode 19 comprises a capacitor 22 in parallel with the diode 19, means for charging the capacitor to a voltage sufficient to cause avalanche breakdown of the diode in response to a first timing pulse and means for reducing the capacitor voltage by a predetermined amount in response to a second timing pulse. The circuit may be used in a laser rangefinder. As shown, monostable 11 generates the first timing pulse 13 (duration t 1 ) and monostable 12 generates the second timing pulse 14 (duration t 3 ). The monostables are triggered by the leading and trailing edges respectively of laser timing pulse 10 (duration t 1  + t 2 ). During the first timing pulse, transistor Q1 is switched on and current from battery 16 flows through transformer primary 15  storing energy therein. During period t2, the energy induced in transformer secondary 17 charges capacitor 22 via diode 18, resistor 23 or diode 19 and battery 24 to the avalanche breakdown voltage of diode 19, at which voltage diode 19 breaks down, holding the capacitor charge at that value. During period t 3 , transistor Q 2  is switched on, connecting one end of capacitor 22 to earth and reducing the bias voltage on diode 19 to a voltage below the avalanche breakdown voltage by an amount equal to the voltage of battery 24. The circuit will therefore function with diodes of different avalanche breakdown voltage. The circuit biases the diode in a few hundred micro-seconds.
Patent GB-1516532-A (GB)
Title: Process for making a food product resembling cheese
IPC: A23C19/093
Filed: 1975-07-23
Abstract: 1516532 Cheese composition ANDERSON CLAYTON & CO 23 July 1975 [26 Aug 1974] 30851/75 Heading A2B A food product comprises (i) Na and/or Ca caseinate in an amount of 15-35% of the total product (ii) lactic, citric or malic acids or any combination thereof or any one or any combination of said acids together with adipic acid in an amount between 0.5 and 1.8% of the total (iii) fat having a Wiley melting point between 90‹ and 110‹F in an amount between 12 and 33% by wt. of the total. The product is formed (a) by mixing powdered casein an aqueous solution of the above acid(s) and a Na and/or Ca salt or base to form a caseinate, the casein being mixed first with the acid solution. When a calcium salt or base is used and the aqueous acid solution having a pH of 2.5-3.5 (b) mixing the casein prior to step (b) or with the caseinate from step (b) with the fat under high shear mixing and under subatmospheric pressure to form a gas-free homogenous blend. The product resembles pasta filata, cheddar or pasteurized process American type cheese. Ungelatinised flour may be included.
Patent GB-406085-A (GB)
Title: A method of manufacturing glass wool sheets for primary and secondary batteries, filtration and other purposes
IPC: H01M50/409
Filed: 1932-11-02
Abstract: 406,085. Filtering-media. BRITISH GLASS WOOL CO., Ltd., and HOLMES, A. R., Hare Street, Buntingford, Hertfordshire. Nov. 2, 1932, No. 30891. [Class 46.] Glass wool sheets for filters &c., are made by spreading out the wool 1 in the form of a sheet and stitching through it with rows of stitches 2 to hold the fibres together.
Patent GB-1513373-A (GB)
Title: Filters
IPC: B01D29/01
Filed: 1974-07-12
Abstract: 1513373 Rotary drum filter MATHER & PLATT Ltd 2 July 1975 [12 July 1974] 31062/74 Heading BID An outward - flow rotary drum filter comprises a drum framework made of axially and circumferentially oriented bars 11, 12 defining apertures which are closed by respective rectangular filter elements 13 (Figs. 1, 2 not shown), each element comprising a piece of woven wire mesh with an openwork frame 15, 16 bonded to each side thereof. The frames have peripheral flanges 17 by which the elements are clamped to bars 11, 12 using clamping plates 18. The mesh may be Hollander weave, stainless steel wire of 0.05mm dia. and has a pore size of 15-100 microns. Flanges 17 may have coloured plugs denoting pore size. As the drum rotates its upper part passes under a reverse flow filtrate spray tube washing the solids into a trough inside the drum.
Patent GB-153269-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01P1/02
Filed: 1919-12-11
Abstract: 153,269. Birkigt, M. Oct. 18, 1919, [Convention date]. Spray carburettors.-To increase the power developed by an engine for a motor vehicle &c., the engine is enclosed in a bonnet or casing in which the pressure of the cooling air is maintained above that of the atmosphere. In the construction shown in the Figure, an engine a is supported upon the chassis of a motor vehicle by extensions a<1>, the floor space occupied by the bonnet being completely sealed by plates e, a<3>, a<4>. A fan may be located behind the radiator d. The outlet orifices g<0> in the bonnet are of such dimensions that the cooling air circulated through the bonnet is maintained at a suitable pressure.
Patent GB-324637-A (GB)
Title: Edible compound including egg products
IPC: A23L15/00
Filed: 1928-10-26
Abstract: 324,637. Irwin, J. C., and Tranin, S. Oct. 26, 1928. Food preparations.-A food product, suitable as an egg substitute in cooking, is prepared by making an emulsion of oil with water and milk, adding whites of eggs, and stirring, the relative quantities of the materials being such that the proportions of proteins and fats are substantially the same as occur in natural eggs. The fat, or combination of fats, employed is preferably one having iodine value substantially the same as that of natural egg oil. By way of example, 63 per cent by weight of egg whites are added to an emulsion of 13 per cent of peanut oil in 13 per cent of water and 11 per cent of dry skim milk.- For distribution purposes the compound may be frozen. Three parts of the compound may also be combined with one part whole eggs, the eggs in liquid form being thoroughly intermixed with the compound preferably without such agitation as to beat up the whites. Accessory substances, such as salt and sugar, may be added.
Patent GB-1281173-A (GB)
Title: Handling apparatus for cases
IPC: B65G59/02
Filed: 1969-06-19
Abstract: 1281173 Unstacking apparatus; conveyers; load handling ALVEY CONVEYER MFG CO 19 June 1969 [20 June 1968] 31112/69 Headings B8A B8C and B8H Handling apparatus for cases comprises an elongated frame 25, means thereon for successively engaging layers of cases C, one layer at a time, powered means on the frame operable on the case-engaging means to move the caseengaging means along the frame between two different positions, conveyer means 16 and 47 adjacent each of the two positions to handle cases, one of the conveyer means 16 handling cases reposing in layers and the other of the conveyer means 47 handling cases in single layers, means for effecting relative vertical movement between the case-engaging means and the one conveyer means 16 by an amount equal to the height of the cases in a layer, and a third conveyer means 18 connected in horizontal alignment to the other of the conveyer means for handling the cases singly. As shown, the frame is movable vertically within a frame structure 20-24 by means of power operated cables 29, 30 in conjunction with a counterweight (38), Fig. 2 (not shown). The frame 25 is provided with a case dispenser means 47 which consists of a platform of rollers 50 which are driven by a belt 51 from a motor unit 54. A gate bar 55 at the discharge end is operated by a pair of levers 56 from a fluid pressure cylinder 60 to either allow or stop cases passing from the rollers 50 to a motor driven discharge conveyer 62. An accelleration roller 61 draws the cases rapidly off the rollers 50. The conveyer means 18 which follows the conveyer 62 is automatically adjustable by means of rollers 70, 71 which accommodate slack in the conveyer as the latter moves in response to movement of the frame 25. The cases are transferred in layers to the dispenser means 47 by means of pairs of grippers (100), (100), Figs. 5 and 6 (not shown), carried on pivoted and weighted levers (93), (93) which are movable by means of chain-and-sprocket gears from a motor unit 109, all disposed on a gripper head 76 which is movable from a "home position" to a "release position" above the dispenser means 47, the frame 25 being moved downwardly automatically to the next adjacent layer on the conveyer 16 as the head 76 returns to the "home position". Automatic operation of the apparatus is controlled in known manner by photo-cell units and limit switches. In another arrangement, Fig. 14 (not shown), the gripper head 76 is mounted on the frame member 23 from which the dispenser means 47 and the rollers 62 are suspended. A hoist table (131) moves the cases upwardly from the conveyer means 16.
Patent GB-324401-A (GB)
Title: Improvements in or relating to apparatus for closing the ends of cartons or like receptacles
IPC: C25D13/18
Filed: 1928-10-26
Abstract: 324,401. Rose, A. G., and Rose Bros. (Gainsborough), Ltd. Oct. 26, 1928. Paper and like bags, folding down mouths of after filling.-Apparatus for closing the end of a carton &c. by folding over the open mouth a flap contiguous with one of the sides and bending over and tucking in between the opposing carton side and the contents a tab disposed along the free edge of the strip, comprises mechanism for bulging one side away from the contents and a tucking finger movable in synchronism with folding means for the flap to insert the tab in the bulge. Filled cartons are moved intermittently along a channel 25, Fig. 7, by a conveyer 27 and pass beneath a. plough 28 which turns upwards the closure flap 21, Fig. 1, against a fixed abutment 29 preparatory to an oscillating tab folder 30 bending over the tab portion 22; a semicircular cover 31 then retains the tab in its bent over position while the plough 28 turns the flap over the mouth of the carton. The tab folder 30 is mounted on a bracket 33 and, as the tab folder moves back, a pressure element 32 on the bracket slightly compresses the contents beneath the tab 22. After the next forward movement of the conveyer 27, forked grippers 39 on the bracket 33 engage the sides of the carton with their tapered ends and compress them, causing the side of the carton beneath the tab 22 to bulge outwards and allow a folding member 40 to fold down the flap 21 as a tucking member 41 tucks the tab 22 between the contents and the bulged side, the carton being held in position by locating members mounted on the folding member 40. The flap folding member 40 is pivoted on an arm 42 linked at its other end to a standard 45 and adapted to be drawn downwards by a link 47 and lever 48 pivoted on a shaft 49, its movement being controlled by a radius rod 100 and the engagement of an extension 53 of the folder 40 with a roller 54 on the machine frame. The tab tucker 41 is similarly mounted. The conveyer 27 moves across the path of' the cartons into its operative position, then along the path to transport the cartons, out from the path in a direction reverse to its first direction, and finally back, parallel to the path to its first position. This is effected by mounting it on bell crank levers 64, 65, Fig. 9, the opposite arms 66, 67 of which are linked together, the levers being mounted on a frame 71 connected to the main frame of the machine by a parallel link motion comprising levers 76, 89. The lever 76 is connected by a spring (not shown) to an arm 82 which is oscillated by a cam 84 to move the frame 71 in the direction of the path of the cartons, a lever 91 operated by a cam 93 rocking the bell crank levers to effect the transverse movements of the conveyer.
Patent GB-1523405-A (GB)
Title: Pulse equaliser
IPC: H03K5/06
Filed: 1976-07-27
Abstract: A passive regenerator, requiring no external power supply, for binary signals of a specified clock frequency is proposed. A mismatched, adjustable impedance (4) is connected to a transmission line (3) via a delay line (2), and the delay is half a clock interval or a multiple thereof. The pulse which is reflected because of the mismatch is subtracted from the original pulse, which reduces the signal content in the pulse extension and therefore the pulse distortion. <IMAGE>
Patent GB-299805-A (GB)
IPC: B61L1/16
Filed: 1928-10-29
Abstract: 299,805. Vereinigte Eisenbahn- Signal-werke Ges., (Assignees of Allgemeine Elektricitõts-Ges.). Nov. 1, 1927, [Convention date]. Counters for articles.-Relates to a switch device, operated by the passage of railway axles and applicable to counting them in and out of a section of line. The magnets which serve to pass on the current impulse imparted by passage of an axle are arranged to free gear wheels in an electric motor drive through a, friction coupling, and so pass on the impulse. The magnets f<1>, f<2> receiving the impulses from contacts k<1>, k<2> which are actuated by the passing in and out, respectively, of an axle attract their armatures g<1>, g<2> and by so doing allow one or other of the two pairs d<1>, d<2> of gear wheels to be rotated by the motor-driven shaft a through friction couplings e<1>, e<3>, according to which of the contacts k', k<2> is closed. The teeth of the wheels of each pair are displaced angularly by half the tooth pitch, so that when the armature g<1> or g<2> is attracted from the outer wheel to the inner, the wheel d<1> or d<2> rotates half a tooth until arrested by the next tooth on the inner wheel. Retraction of the armature allows the wheel to rotate a further half-tooth. The larger gear wheels l<1>, l<2> are also operated and serve to actuate the counters. Contacts m<1>, m<2> are only in engagament when the wheels e<1>, e<3> are in the same position, and close the circuit of a magnet o operating a signal to show that the section is clear.
Patent GB-446430-A (GB)
Title: Improvements relating to gas heated air heating apparatus
IPC: F26B21/00
Filed: 1934-11-01
Abstract: 446,430. Heating air. SERCK RADIATORS, Ltd., Warwick Road, Greet, and HUME, R. H., and ATKIN, F. L., c /o City of Birmingham Gas Department, Council House, both in Birmingham. Nov. 1, 1934, No. 31406. [Class 64 (i)] [See also Group XI] Gas-heated apparatus for supplying hot air to kilns, muffles, stoves, drying-chambers, and like enclosures comprises tubes a connecting a combustion chamber b to a hot-gas chamber g and a fan which draws air from the enclosure through a passage n and hot gases from the hot-gas chamber through apertures h and forces the mixture over the tubes into the enclosure. The valve controlling the supply of gas to the burners c is opened by the pressure of the oil supplied to the fan bearings by a pump o driven by the fan motor k.
Patent GB-1079886-A (GB)
Title: Improved absorbent sheet material
IPC: A61F13/15
Filed: 1964-08-04
Abstract: A baby's napkin is made of absorbent material comprising a layer of cellulose wadding and a layer of cotton wool the opposite edges of which are turned over the corresponding edges of the first layer and secured thereto at spaced points as by crimping, stitching, sewing, or by adhesive.
Patent GB-783937-A (GB)
Title: Improvements in agricultural implements
IPC: A01B35/22
Filed: 1954-11-02
Abstract: 783,937. Agricultural implements. LEGG, B. J. Sept. 15, 1955 [Nov. 2, 1954], No. 31598/54. Class 6(1). A tool is mounted on an agricultural implement by having its stem 2 slidably engaged in a hole in a cross member 3 of the implement so that the lug 4 which is integral with the stem engages the underside of the cross member and is housed between lugs 5 integral with the cross member. The stem is then held in position by a cross pin 6 either engaging holes in the lugs 4 and 5 or engaging holes in the lugs 5 and passing beneath the lug 4.
Patent GB-849037-A (GB)
Title: Method for the n-alkylation of cyclic amines
IPC: C07D295/03
Filed: 1958-10-03
Abstract: Cyclic tertiary amines having the general formula: <FORM:0849037/IV(b)/1> wherein n is an integer of 2 or more, R and R1 represent hydrogen or alkyl, alicyclic or aromatic groups and R11 represents an alkyl, alicyclic or aromatic group are prepared by reacting the corresponding cyclic secondary amines with carboxylic acid esters of the general formula R11 COOR111, R111 representing an alkyl, alicyclic, araliphatic or aromatic group, in the presence of lithium aluminium hydride. Examples describe the interaction of Li Al H4 in ethyl ether at room temperature with (1) pyrrolidine and ethyl acetate yielding N-ethyl pyrrolidine and (2) piperidine and ethyl acetate or benzyl benzoate yielding N-ethyl and N-benzyl piperidine respectively.
Patent GB-921468-A (GB)
Title: Multi-polar change-over switches or disconnecting switches for electric switch gear
IPC: H01H31/28
Filed: 1960-09-14
Abstract: 921,468. Air-break switches. ELEKTROTECHNICKE ZAVODY JULIA FUCIKA. N.P. BRNO. Sept. 14, 1960 [Sept. 14, 1959], No. 31609/60. Class 38 (5). A change-over switch for electrical switchgear comprises rotary knives 1 co-operating with fixed contacts 13, 13<SP>1</SP> and secured by pins 6 to insulating parts 3, 7, 11 of a shaft pivoted in a frame 10 and rotated by a driving mechanism 8, the lower pins 6 pivoting in the axis 2 of fixed contacts 4. In a modification, Fig. 3, the insulating shaft 15 is in one piece and carries pairs of knives 14 pressed by springs 21 to engage segments 20 connected to fixed contacts, Fig. 4 (not shown). Alternatively, each pair of knives 14 may be joined to the fixed contact by a flexible link, Fig. 5 (not shown). The shaft or its parts may be made by pressing from insulating material or by casting from resin.
Patent GB-635750-A (GB)
Title: Improvements in or relating to cartons or boxes
IPC: B65D5/32
Filed: 1947-11-29
Abstract: 635,750. Boxes. BELSINGER, Inc. Nov. 29, 1947, No. 31636. Convention date, May 6. [Class 18] A shipping box or carton has a double walled bottom formed by intermediate panels of two super-imposed blanks of which one also forms front and rear walls 12, 13 and lid 10 and the other also provides end walls 14, the ends being higher than the walls 12, 13 and being secured to flaps 16, 17, 18 of the other blank by staples. The ends have double folded portions 15 and holes 14a to provide hand grips. A liner 40, Fig. 10, may be inserted to bring the walls to even height and a sheet or a tray 60, Fig. 11, of waterproof material may be interposed between the bases of the two box sections. A reinforcing sheet 50, Fig. 10, may be secured inside the lid by stapling its flanged ends 51, 52 to the lid flanges 22, 21. The box may be sealed by a length of gummed tape applied to the meeting edges of the box and lid.
Patent GB-383745-A (GB)
Title: Improvements relating to machines for mixing concrete and the like
IPC: B28C7/08
Filed: 1931-11-16
Abstract: 383,745. Concrete &c. mixers. LANGFORD, H., 96, Plymouth Place, Leamington Spa, and WINGET, Ltd., The Cape, Warwick. Nov. 16, 1931, No. 31764. [Class 86.] The pivoted feeding skip of a concrete mixer is given a vibratorv motion when in its discharging position by mounting the pivoting shaft in bearings riding in slots and providing the skip with rollers which are engaged by cams on the frame rotated from the drum by means of projections on the latter and star wheels on the cam shafts. The discharge end of the skip is adjustably mounted on a cradle 5 supported on a shaft 6 carried by bearings 7 riding in inclined slots 7a. The projections 9 on the skip are engaged by cams 13 on shafts 11 fitted with star wheels 15 which are engaged by projections 14 on the drum.
Patent GB-620518-A (GB)
Title: Improvements in and relating to photographic papers
IPC: G03C1/74
Filed: 1946-10-25
Abstract: 620,518. Photographic printing paper. KODAK, Ltd., DAVEY, E. P., and SOPER, A. K. Oct. 25, 1946. No. 31779. [Class 96] [Also in Group XX] Paper has a ripened sensitive silver halide emulsion dispersed therein, either uniformly or in greater concentration at or near one or both surfaces of the paper. The emulsion may be added to, or prepared in, the pulp and the latter then formed into paper; unsized paper may be tub-sized with the emulsion, or duplex paper may be made from a layer of ordinary pulp and one or two layers of the sensitive pulp. The operations are carried out in non-actinic light, such as orange light. Specifications 524,087 and 530,562, [both in Group XX], are referred to.